I've been thinking about this as well - if Mitsu was "fine tuning" the grille block to this extent, it's possible the 1.0L manual version of the car may have even more grille blocked than the 1.2. The Cd 0.27 figure referred to in the U.K. may be for that car. (Update: it is, in both Japan and the U.K.)

Thats a great article you found Metro. I would think that they would be wanting a patent for the spoiler so others can't copy it and sell them. I would find it hard to belive they could patent the roof line shape to.